Revolving sand-screen.



2 SHEETS-SHEET I.

E. RNT.

REVOLVING SAND SCREEN! APPLICATION mn MA1 .2,1912,

APPLlCATION FILED MAH.2,1917

Patented J une 26, 1917.

2 SHEETS-SHEET 2.

TTB. Hmm" FRANKLIN'E. ARNDT, l GLION, 03:110, ASSG-NOR TQ THE GLION IRON WDRKS n MFG. C0., F GALQN, GEIQ, A. CBPRATN @E H.

:snvosvin'o seien-sonnen.

Application lfled llsrch 2, 191?.

a citizenof the `United States, residing et Galion, in the county of Crawford and State of Ohio, have invented certain new `and useful improvements in .Revolving Sand-Screens, of which the following is e specification.

This invention comprehends certain newv and useful Improvements in gravel screens. or graders, and relates particularlyto snimproved construction oi sand screen.

The 1nvent1on has for its primary oblect a practical, durable and, very eiicient construction of device of this character, in

which the screen'is made in two semi-cylin drical sections bolted together, to form the complete cylinder that surrounds the perforated shell or drum of the grading device7 each met or section embodying e plurality of wire rods secured rigidly in spaced relation to each other and all of the parts being capable of being easily and cheaply manufactured and easily assembled or put up.

A further object of the invention is to provide e revolving send screen, the parte of which are light and yet strong, and 'Well capable of withstanding the herd use to which e device of this kind is necessarily subjected in service.

` And the invention also aims to generelly improve devices of this class so as to render them more useful and commercially desirable.

With these and other objects in view, es will more fully appear :is the description proceeds, the invention consists in certein constructions, combinations end arrange .ments of th@ Ports that I shell, heeine'fter more fully describe amd claim. l

For c full understanding of the invention, reference is to be hed to the following description end accompanying drawings, in which Figure 1 is a partiel section and partis-.l side elevation of e portion of e rotary grader embodying the improved send screen ofmy invention.

Specilcetien of Letters letent.

Patented June 2d, film 2h sensi ne, wesen. i

y Fig. 2 is e detail view of the end bers for the two mets or sections of the screen,

Figs. 3 and l are detail views illustrating the manner in which the spacing bars are held iii-place at their ends.

F 1g. 5 1s en end view of the screen, the

perforated drum or shell being shown in section,

Fig. is a side view of e portion oone or" the spacing; bers liereinbefore mentioned,

l 1g. l is en edge view thereof, and

Fig. 8 is e. fregmentnrv'plen view of the' end bars used to hold the ends of the screen s send end gravel ginder embodying the v improvements of my invention, seid 'drum being mounted to rotate in any desired wey and et :my desired or predetermined angle Aaccording to the circumstsncesof the cese,

seid drum in the present instance bein shown secured to spiders 2 upon e she t 3 that is gournuled in. bearings i upon stand- 'ards @nly one spider, bec-rin and stendnrd is shown, but it is to be un erstood that two vere provided, one et cach end of the epperetns and that the drum and its surrounding' end concentricelly arranged send screen muy he revolubly supported inv any other desired wey. v

l-.fiy improved sand screen consists of two semicylindricel mots or sections, each comy prising any' desired number of curved or bowed wires or 'rods i3 which pass through openings 7 in splicing bers 8, there being any desired number of bers, preferably arranged et regular intervals or et equal distances spart. The ends of the spacinghars 7 are curled upon themselves, es best illustrated in Fi 7, to form eyes or loops 9 U through whih the bolts 10 pees-said', bolts also passing through rings or bands ll at the two sides or ends ot' the screen and being secured thereto by inlans of the nuts 12.

The ends ot' the wires or rods extend through menings '13 that are formed in the end bars 1l, the bars 14- beingr angle bars,

as best illustrated in Fig. 2 and heilig cured together in abutting relation by any desired number ot bolts or similar tastening devices 15, and at'ter the ends ot' the wires or rods 6 are passed through the openings 13. they are hooked or bent back upon themselves, as shown at t3 in Fig. 2 and thus securely held in place. rl`he ends of the angle bars llt overlap the semi-circular bands 11 and are secured thereto by bolts l() as best illustrated in Fig. S.

The complete, screen is secured to the drum t outside ol and in concentric relation thereto by .means ot' any desired number of bolts 17 and spacing,r pipes or sleeves 18, as clearly illustrated. in Fig. 5.

From the foregoing description in connection with the accompanying drawings, the operation or my improved sand screen will be apparent to those familiar with the art to which this invention appertains. The apparatus is tilted and held at the desired inclination in any desired way, and the. sandy gravel, from the pit, `for example, is dumped into the screened end of the drinn which, with its surrounding sand screen, is rotated at any desired rate of speed and by any desired power. It the screen were not provided, it is evideit that quite a number ot relatively large stones or pebbles would be, thrown by the centrifugal. action out through the trame and lind their way into the sand bin, but this is prevented by the screen, and such particles are caused to remain within the device. until they are finally tumbled out into the gravel binat one end el' the screen.

It will be .seen that l have provided a very practical, durable and efficient construction ot sand screen, the parts ot' which may be very easily manufactured and assembled. The wire rods (i may be. very readily passed through the openings T in the spacing bars and the latter firmly secured at their ends tothe semi-circular bands l1 by the holts 'l0 passing tlnfough the openings formed i'or them in .said bands, and 'the two semi-cylin .li'ical sections or mats, may be very easily secured together by passing the bolts la through registering openings :formed lfor them in the. outwardly projecting flanges of the angle bars 11 to t'orm the complete screen.

Thile the accompanying drawings illustrate what l lielicve to be the preferred embodiment ot' my invention, it is to be understood that the invention is not limited thereto, but that various changes may beA made in BEST AVAILABLE cop.

the construction, arrangements and proportions ot' the parts without departing from the scope of the'invention as claimed.

4Whrt is claimed, is:

1. .i sand screen comprising sections, each otl which includes a plurality olf bowed rods, angle bars formed in one tlange with openings in which the ends of said rods are hooked, the angle bars ot' one section abutting against the angle bars of the adjoining' section, fastening devices extending through the abutting tlanges ot said hars to secure the sections together, bands, said angle bars overlapping said bands, and vtastening devices extendingl through said bands and the overlappingl ends otE said bars.

2. A sand screen, comprising sections, each of which includes a plurality ot' bowed rods and angle bars formed in one flange with openings in which the ends ot' said rods are engaged, the. end bars of one section abutting against the end bars of the other section, and fastening devices extending through tl i abutting flanges of said end bars to secure the sections together.

3. A sand screen, including a plurality o1 bowed rods, a plurality ot spacing bars :t'ormed with openings through which the rods extend, bands at the ends of said spacing bars, the latter having their ends coiled upon themselves to form eyes, bolts passing through said eyes and the bands and curing the bars to the bands, and end bars to which the ends of said rods are secured.

4. A sand screen, including a plurality of bowed rods, a plurality ot'` spacing ba rs formed with openings through which the rods extend, bands at the endsot' said spacing bars, the latter having their ends coiled upon themselves to t'orm eyes, bolts extending through said eyes and the bands and securing the bars to the bauds, end bars to which the ends ot' said rods are secured, and bolts securing the ends of the end bars to said bands.' l

Tn a machine ot' the character described, the eoml'iination with a perforated drum, of a sand screen surrounding said drum and spaced therefrom in concentric relation thereto, said screen comprising two .senncylini'lrical sections, each ot which comprises a plurality of bowed rods, spacing bars formed with openings through which the rods extend, bands, bolts passing through said bands, the bars having their ends coiled around said bolts, angle bars toi-med with openings in which the ends ot' said rods are hooked, said angle bars at their ends overlapping and resting upon said bands, bolts cxtei'iding through the. bands and the overlapping ends ol the a ugle bars so as to secure .said bars to the bands, bolts securing the angle bars of one section to the angle bars of the other section, and means forliolding the screen in spaced relation to the drum.

(3. A sand screen including a plurality of bowed rods, end 4bars to which the ends O Suid rods are connected, bands, transversely extending' means secured to said rods inter- .u'iedinte oi the ends of the latter :1nd hold- .ingY said rods in spaced relation to each other, y

:fastening devieess Securing the ends 'of tlie spacing; means to the bands and fastening 10 devices securing the ends of the end bars to the bands..

In testimony whereof affix my signature in the presence of two witnesses.

y FRANKLIN E. ARNDT. llfitiiesses:

F. J. SANDERS,

. M. BREUEMSTUL. 

